Each session opens with one main barbell lift for sets of 3 to 5, started around 85% of your one-rep max: heavy enough to build strength, light enough at 3 reps to leave a couple in reserve. Sets of five at that load are close to a hard five, which is the top of the range and the point where the load goes up. Strength is built by accumulating quality work, not by chasing a max every session.
The four-day layout gives squat, bench, deadlift, and overhead press their own dedicated day, so each main lift is trained hard once a week with a full recovery window before it comes around again. The accessory work after the main lift reinforces that pattern and covers the rest of the body at moderate reps.
On MuscleBuddy the 85% is where you start, not a percentage the app recalculates each week: the main lifts and the accessories both run with double progression. Build from 3 reps toward 5 on every set, and once you reach 5 across the board the next session adds a small increment. If you come up short of the bottom of the rep range three sessions in a row, MuscleBuddy takes about 10% off that lift and you build back up from there.
The block runs four working weeks with no deload week written in. MuscleBuddy eases a week for you when your recovery scores trend down, and you can take a deload week yourself whenever you need one. This is a strength program first; expect steady barbell numbers rather than a pump-focused hypertrophy stimulus.